I think the only two reasons of opposing Simon commission was that :-
1. Indians were not included.
2. No indication of the swaraj.

hope u got it !!

The Simon Commission was established in 1927 by the British government to examine and make recommendations for the future of British India's constitutional system. However, the Commission was boycotted by the Indian National Congress and other Indian political parties. Here are the reasons why the Simon Commission was boycotted:


The Simon Commission did not have any Indian members. This was seen as a major insult by Indians, who felt that they were being excluded from the process of deciding their own future.


The British government had issued the Whitehall Declaration in 1926, promising eventual Indian self-rule. The Simon Commission was seen as a violation of this promise, as it appeared to be an attempt to delay the granting of self-rule.


In 1928, the Indian National Congress presented the Nehru Report, which outlined a plan for a future Indian government. The report was a direct challenge to the Simon Commission, which was seen as an attempt to impose a British solution on India.


The Simon Commission was met with widespread protests and demonstrations throughout India. These protests were organized by the Indian National Congress and other political parties, who called for a boycott of the Commission.


In conclusion, the Simon Commission was boycotted by Indians for a variety of reasons, including the lack of Indian representation, the Whitehall Declaration, the Nehru Report, and widespread protests. The boycott was an important moment in India's struggle for independence, and it helped to mobilize public opinion against British rule.